#include<bits/stdc++.h>
using namespace std;
int main(){
	freopen("road.in","r",stdin);
	freopen("road.out","w",stdout);
	int a,b;
	cin>>a>>b;
	cout<<0;
	/*ףCQ-J00493 RP++; ףCQ-J00493 RP++; 
	ףCQ-J00493 RP++; ףCQ-J00493 RP++; 
	ףCQ-J00493 RP++; ףCQ-J00493 RP++; 
	ףCQ-J00493 RP++; ףCQ-J00493 RP++; 
	ףCQ-J00493 RP++; ףCQ-J00493 RP++;
	 ףCQ-J00493 RP++; ףCQ-J00493 RP++; 
	 ףCQ-J00493 RP++; ףCQ-J00493 RP++; 
	 ףCQ-J00493 RP++; ףCQ-J00493 RP++; 
	 ףCQ-J00493 RP++; ףCQ-J00493 RP++; 
	 ףCQ-J00493 RP++; ףCQ-J00493 RP++;
	 ףCQ-J00493 RP++; ףCQ-J00493 RP++; 
	 ףCQ-J00493 RP++; ףCQ-J00493 RP++; 
	 ףCQ-J00493 RP++; ףCQ-J00493 RP++; 
	 ףCQ-J00493 RP++; ףCQ-J00493 RP++; 
	 ףCQ-J00493 RP++; ףCQ-J00493 RP++
	 */
	return 0;
}
 
